add tests for multipart/form-data (#115)

* chore: add tests for `multipart/form-data`

* chore: apply automated updates

* chore: cleanup

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

Author: kricsleo

server/public/data.pdf

@@ -4,7 +4,7 @@ const { baseURL } = useRuntimeConfig().app;
 
 const withBase = (p) => baseURL + p.replace(/^\//, "");
 
-const tests = ["api", "form-data"];
+const tests = ["api", "form-data", "multipart-form-data"];
 
 const manualTests = ["env", "node-compat", "headers"];
 

server/routes/index.ts

@@ -0,0 +1,38 @@
+// https://github.com/nitrojs/nitro/issues/1721
+export default defineTestHandler(
+  "multipart-form-data",
+  async (event) => {
+    const formData = await readMultipartFormData(event);
+    const name = formData
+      .find((partData) => partData.name === "name")
+      ?.data.toString();
+    const rawFile = formData.find((partData) => partData.name === "file");
+
+    return {
+      data: {
+        name,
+        fileName: rawFile.filename,
+        fileType: rawFile.type,
+        fileSize: rawFile.data.byteLength,
+      },
+    };
+  },
+  async (assert) => {
+    const formData = new FormData();
+    formData.append("name", "John Doe");
+
+    const rawFile = await fetch("/data.pdf").then((res) => res.arrayBuffer());
+
+    const file = new Blob([rawFile], { type: "application/pdf" });
+    formData.append("file", file, "data.pdf");
+
+    const res = await fetch("", { method: "POST", body: formData }).then(
+      (res) => res.json(),
+    );
+    assert(res.data.name === "John Doe", `Unexpected response: ${res.data}`);
+    assert(
+      res.data.fileSize === rawFile.byteLength,
+      `Unexpected response: ${res.data}`,
+    );
+  },
+);